| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce arithmetic amounts by validly selecting the coordinates of central points at the time of operating global movement compensation, and replacing a dividing processing at the time of operating global movement compensation with a binary shift arithmetic operation. SOLUTION: At the time of using linear interpolation and extrapolation, central points are defined as points 602, 603, and 604 positioned at (i, j), (i+p, j), and (i, j+q) of an image 601 ((i), (j), (p), and (q) are integral numbers). At that time, the points 602, 603, and 604 can be present either inside or outside the image. When the horizontal and vertical components of the moving vectors of the central points are multiplied by (k) so that (u0, v0), (u1, v1), and (u2, v2) can be obtained (u0, v0, u1, v1, u2, and v2 are integral numbers), the horizontal and vertical components of the moving vector of a picture element (x, y) are multiplied by (m) so that (u(x, y), v(x, y)) can be obtained and expressed with a prescribed formula.</p> |
